1661302 has 8 divisors (see below), whose sum is σ = 2508912. Its totient is φ = 825000.

The previous prime is 1661293. The next prime is 1661311. The reversal of 1661302 is 2031661.

It is an interprime number because it is at equal distance from previous prime (1661293) and next prime (1661311).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1661302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2449 + ... + 3052.

It is an arithmetic number, because the mean of its divisors is an integer number (313614).

2^1661302 is an apocalyptic number.

1661302 is a deficient number, since it is larger than the sum of its proper divisors (847610).

1661302 is a wasteful number, since it uses less digits than its factorization.

1661302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5654.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1661302 is about 1288.9150476273. The cubic root of 1661302 is about 118.4357631039.

Adding to 1661302 its reverse (2031661), we get a palindrome (3692963).

The spelling of 1661302 in words is "one million, six hundred sixty-one thousand, three hundred two".